While reading a 6th edition Western Ammunition Handbook, that I recently bought from a board member, I noticed there was mention made of the 10 ga. magnum loads. I never gave much thought to how old they were but, I guess I assumed they were a more recent development. However, the latest date mentioned in the handbook for any events being won with Western ammo is 1939. Am I wrong to assume that the handbook was written soon after 1939, possibly 1940 ? And if so, it is interesting to me that the 3 1/2" was already in use. First I ever heard of it, as a young man, was when Ithaca built the big Mag 10 autoloader.
Just when was it developed and marketed? and, what were the first guns chambered for it?
SRH
